{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:UP4RTB33EWKXYU2HIWF5E6ZTFQ","short_pith_number":"pith:UP4RTB33","canonical_record":{"source":{"id":"1612.08898","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-12-28T14:35:13Z","cross_cats_sorted":[],"title_canon_sha256":"97ccf7de68e6085982ed4d9cd45d3455a68b8bbb9a1ddadd8c0c0ea7ddb07d0c","abstract_canon_sha256":"70a549f45343260a5e4421ac388fd498172a12872e4d20d250179833a2c36cdd"},"schema_version":"1.0"},"canonical_sha256":"a3f919877b25957c5347458bd27b332c0ed92feea0c2dd48b4d387d07c0dc67f","source":{"kind":"arxiv","id":"1612.08898","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.08898","created_at":"2026-05-18T00:53:04Z"},{"alias_kind":"arxiv_version","alias_value":"1612.08898v1","created_at":"2026-05-18T00:53:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.08898","created_at":"2026-05-18T00:53:04Z"},{"alias_kind":"pith_short_12","alias_value":"UP4RTB33EWKX","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"UP4RTB33EWKXYU2H","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"UP4RTB33","created_at":"2026-05-18T12:30:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:UP4RTB33EWKXYU2HIWF5E6ZTFQ","target":"record","payload":{"canonical_record":{"source":{"id":"1612.08898","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-12-28T14:35:13Z","cross_cats_sorted":[],"title_canon_sha256":"97ccf7de68e6085982ed4d9cd45d3455a68b8bbb9a1ddadd8c0c0ea7ddb07d0c","abstract_canon_sha256":"70a549f45343260a5e4421ac388fd498172a12872e4d20d250179833a2c36cdd"},"schema_version":"1.0"},"canonical_sha256":"a3f919877b25957c5347458bd27b332c0ed92feea0c2dd48b4d387d07c0dc67f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:53:04.732392Z","signature_b64":"1zUVjNs8Gx/dZxM/edtLIIqSi7c75GmIni7DcpI2055QD2Ol38nOD4hi7LlZJlN+tt0sUeENqKXpa+OUTGOUDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a3f919877b25957c5347458bd27b332c0ed92feea0c2dd48b4d387d07c0dc67f","last_reissued_at":"2026-05-18T00:53:04.731898Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:53:04.731898Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1612.08898","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:53:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yrlvLgOrHwBkQDb0ug4zHBMoUsgi61LDiruH9HBxCGLGpiCiJu4GHwMMn0+WMADBX7mSR7ompBeYJitxz88dDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T07:31:12.594105Z"},"content_sha256":"2aee057692ad9779d7c88430ea88bc464d80c57e67e408a16247a29e04ae5e8b","schema_version":"1.0","event_id":"sha256:2aee057692ad9779d7c88430ea88bc464d80c57e67e408a16247a29e04ae5e8b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:UP4RTB33EWKXYU2HIWF5E6ZTFQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"C$_{60}^+$ - looking for the bucky-ball in interstellar space","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Bondar, G.A. Galazutdinov, G. Valyavin, J. Krelowski, V.V. Shimansky","submitted_at":"2016-12-28T14:35:13Z","abstract_excerpt":"The laboratory gas phase spectrum recently published by Campbell et al. has reinvigorated attempts to confirm the presence of the C$_{60}^+$ cation in the interstellar medium, thorough an analysis of the spectra of hot, reddened stars. This search is hindered by at least two issues that need to be addressed: (i) the wavelength range of interest is severely polluted by strong water- vapour lines coming from the Earth's atmosphere; (ii) one of the major bands attributed to C$_{60}^+$, at 9633 \\AA, is blended with the stellar Mg{\\sc ii} line, which is susceptible to non-local-thermodynamic equili"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.08898","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:53:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mZmektwWnd75UGG7hmOCVbkLB3HIihxHtQGpQm2Nw7hmkqQepV5TMHEgmYvTCwauDJON3OlWfRd4D7UWhNkdDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T07:31:12.594796Z"},"content_sha256":"e00d9ee66528d8d5b4c49d50d403afd94dcb085a546ef204b758188649da479f","schema_version":"1.0","event_id":"sha256:e00d9ee66528d8d5b4c49d50d403afd94dcb085a546ef204b758188649da479f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UP4RTB33EWKXYU2HIWF5E6ZTFQ/bundle.json","state_url":"https://pith.science/pith/UP4RTB33EWKXYU2HIWF5E6ZTFQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UP4RTB33EWKXYU2HIWF5E6ZTFQ/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-26T07:31:12Z","links":{"resolver":"https://pith.science/pith/UP4RTB33EWKXYU2HIWF5E6ZTFQ","bundle":"https://pith.science/pith/UP4RTB33EWKXYU2HIWF5E6ZTFQ/bundle.json","state":"https://pith.science/pith/UP4RTB33EWKXYU2HIWF5E6ZTFQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UP4RTB33EWKXYU2HIWF5E6ZTFQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:UP4RTB33EWKXYU2HIWF5E6ZTFQ","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"70a549f45343260a5e4421ac388fd498172a12872e4d20d250179833a2c36cdd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-12-28T14:35:13Z","title_canon_sha256":"97ccf7de68e6085982ed4d9cd45d3455a68b8bbb9a1ddadd8c0c0ea7ddb07d0c"},"schema_version":"1.0","source":{"id":"1612.08898","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.08898","created_at":"2026-05-18T00:53:04Z"},{"alias_kind":"arxiv_version","alias_value":"1612.08898v1","created_at":"2026-05-18T00:53:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.08898","created_at":"2026-05-18T00:53:04Z"},{"alias_kind":"pith_short_12","alias_value":"UP4RTB33EWKX","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"UP4RTB33EWKXYU2H","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"UP4RTB33","created_at":"2026-05-18T12:30:46Z"}],"graph_snapshots":[{"event_id":"sha256:e00d9ee66528d8d5b4c49d50d403afd94dcb085a546ef204b758188649da479f","target":"graph","created_at":"2026-05-18T00:53:04Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"The laboratory gas phase spectrum recently published by Campbell et al. has reinvigorated attempts to confirm the presence of the C$_{60}^+$ cation in the interstellar medium, thorough an analysis of the spectra of hot, reddened stars. This search is hindered by at least two issues that need to be addressed: (i) the wavelength range of interest is severely polluted by strong water- vapour lines coming from the Earth's atmosphere; (ii) one of the major bands attributed to C$_{60}^+$, at 9633 \\AA, is blended with the stellar Mg{\\sc ii} line, which is susceptible to non-local-thermodynamic equili","authors_text":"A. Bondar, G.A. Galazutdinov, G. Valyavin, J. Krelowski, V.V. Shimansky","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-12-28T14:35:13Z","title":"C$_{60}^+$ - looking for the bucky-ball in interstellar space"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.08898","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:2aee057692ad9779d7c88430ea88bc464d80c57e67e408a16247a29e04ae5e8b","target":"record","created_at":"2026-05-18T00:53:04Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"70a549f45343260a5e4421ac388fd498172a12872e4d20d250179833a2c36cdd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-12-28T14:35:13Z","title_canon_sha256":"97ccf7de68e6085982ed4d9cd45d3455a68b8bbb9a1ddadd8c0c0ea7ddb07d0c"},"schema_version":"1.0","source":{"id":"1612.08898","kind":"arxiv","version":1}},"canonical_sha256":"a3f919877b25957c5347458bd27b332c0ed92feea0c2dd48b4d387d07c0dc67f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a3f919877b25957c5347458bd27b332c0ed92feea0c2dd48b4d387d07c0dc67f","first_computed_at":"2026-05-18T00:53:04.731898Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:53:04.731898Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1zUVjNs8Gx/dZxM/edtLIIqSi7c75GmIni7DcpI2055QD2Ol38nOD4hi7LlZJlN+tt0sUeENqKXpa+OUTGOUDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:53:04.732392Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.08898","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2aee057692ad9779d7c88430ea88bc464d80c57e67e408a16247a29e04ae5e8b","sha256:e00d9ee66528d8d5b4c49d50d403afd94dcb085a546ef204b758188649da479f"],"state_sha256":"63c2aec1fe07d40ccdaf47df0ebf2ae433336727313f7782001326fcf32043eb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3VBJKrVNHQemZgqgjivbjfhXw0qMSu3GbrpF76I67zZTFEaF3FjsA33SFuaf6SMy9qUScsd0bJfpj4ltq19YCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T07:31:12.598467Z","bundle_sha256":"4f95a6324fbc1860c547b61310760c41c1ce255c6ca110caed20a064b4c93ef3"}}